メタデータ名
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.6562500 42.1250000, 140.6625000 42.1250000, 140.6625000 42.1291667, 140.6562500 42.1291667, 140.6562500 42.1250000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral